Pan-African Paleostresses and Reactivation of the Eburnean Basement Complex in Southeast Ghana (West Africa)
Joint Authors
Tairou, Mahaman Sani
Fleury, Thomas Jules
Affaton, Pascal
Anum, Solomon
Source
Journal of Geological Research
Issue
Vol. 2012, Issue 2012 (31 Dec. 2012), pp.1-15, 15 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2012-07-17
Country of Publication
Egypt
No. of Pages
15
Main Subjects
Earth Science , Water and Environment
Abstract EN
This faulting tectonics analysis concerns the southernmost segment of the Dahomeyide Orogen and the West-African craton eastern margin in southeast Ghana.
The analysis of strike-slip faults in the frontal units of the Dahomeyide Belt indicates that four distinct compressive events (NE-SW, ENE-WSW to E-W, ESE-WNW to SE-NW and SE-NW to SSE-NNW) originated the juxtaposition of the Pan-African Mobile Zone and the West-African craton.
These paleostress systems define a clockwise rotation of the compressional axis during the structuring of the Dahomeyide Orogen (650–550 Ma).
The SE-NW and SSE-NNW to N-S compressional axes in the cratonic domain and its cover (Volta Basin) suggest that the reactivation of the eastern edge of the West African craton is coeval with the last stages of the Pan-African tectogenesis in southeast Ghana.
An extensional episode expressed as late normal faulting is also recorded in this study.
This E-W to SE-NW extension, which is particular to the southernmost part of the Dahomeyide Belt, appears to be post-Pan-African.
This extension probably contributed to the formation of a major Jurassic rifting zone that originated the Central Atlantic and the Benue Trough.
American Psychological Association (APA)
Tairou, Mahaman Sani& Affaton, Pascal& Anum, Solomon& Fleury, Thomas Jules. 2012. Pan-African Paleostresses and Reactivation of the Eburnean Basement Complex in Southeast Ghana (West Africa). Journal of Geological Research،Vol. 2012, no. 2012, pp.1-15.
https://search.emarefa.net/detail/BIM-509797
Modern Language Association (MLA)
Tairou, Mahaman Sani…[et al.]. Pan-African Paleostresses and Reactivation of the Eburnean Basement Complex in Southeast Ghana (West Africa). Journal of Geological Research No. 2012 (2012), pp.1-15.
https://search.emarefa.net/detail/BIM-509797
American Medical Association (AMA)
Tairou, Mahaman Sani& Affaton, Pascal& Anum, Solomon& Fleury, Thomas Jules. Pan-African Paleostresses and Reactivation of the Eburnean Basement Complex in Southeast Ghana (West Africa). Journal of Geological Research. 2012. Vol. 2012, no. 2012, pp.1-15.
https://search.emarefa.net/detail/BIM-509797
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-509797